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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Name important defence mechanisms in plants against herbivory.

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प्रश्न

Name important defence mechanisms in plants against herbivory.

लघु उत्तर
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उत्तर

Herbivores are plants’ natural predators. Plants have evolved many morphological and chemical defences against herbivory. Acacia and cactus depend on thorns as their primary defence mechanism. Certain plants have compounds that can make herbivores sick, delay digestion, disrupt reproduction, or even kill them.

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पाठ 11: Organisms and Populations - EXERCISES [पृष्ठ २०४]

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एनसीईआरटी Biology [English] Class 12
पाठ 11 Organisms and Populations
EXERCISES | Q 3. | पृष्ठ २०४
नूतन Biology [English] Class 12 ISC
पाठ 13 Organisms and Populations
NCERT EXERCISES | Q 9. | पृष्ठ ६१५

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

During .............. typs of interaction, both organisms are benefited

  1. mutualism
  2. competition
  3. commensalism
  4. parasitism

Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.


Mention any two examples where the organisms involved are commercially exploited in agriculture.


Competition and Mutualism.


Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.


Give one example of mutualism.


Name important defense mechanisms in plants against herbivores.


With the help of a suitable diagram, describe the logistic population growth curve.


Community is defined as ______.


What is population ecology?


______ is the adaptation of an organism i which it matches its colour with its surroundings to get protected from predators.


The interspecific interaction between Cuckoo and Crow is ______


Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.


Which population interaction can be represented by'+''-'?


Cattle egrets always foraging close to the grazing cattle is an example of ____________.


Which one of the following is NOT an example of mutualism?


Musk deer is an example of ______ 


Mycorrhizae are the example of ______.


______ in birds is an interesting example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them.


Which one of the following is one of the characteristics of a biological community?


Amensalism is an association between two species where ______.


Define ectoparasite and endoparasite and give suitable examples.


Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.


Complete the following chart regarding population interaction and re-write:

Sr. No. Name of interaction Interaction between
1. ? Plasmodium and Man
2. ? Leopard and Lion
3. ? Clownfish and Sea-anemone

A bird laying its egg in the nest of another bird is the type of ______.


Write a note on parasitism.


Mention the scientific name of protozoan parasite that causes Amoebiasis.


Which one of the following statement INCORRECT regarding competition?


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